Improvement of Starting Transient State in a Fixed Speed Wind Turbine using STATCOM

Abstract

Nowadays, the effects of wind generators have become an important issue in power quality due to impressionability in the lack of uniformity in adjusting frequency and power systems’ voltage. Wind turbine generators during commissioning even when they use a soft starter and connect to a power network transient and oscillatory flow have reactive power and effective voltage. With the presence FACTS devices (especially parallel devices) and reactive power injection, reactive power changes and effective voltage can be reduced. In this paper, the studied system consists of Thévenin equivalent circuit of a power network, which connects to a wind generator through transformers and transmission lines. Dynamic modeling of transient wind turbine and also, commissioning condition of power system model and simulation of computer were done in PSCAD / EMTDC software. At the end, simulation results of the desired system show that the presence of STATCOM in network improves the initial transient state of some parameters such as voltage, reactive power output of generators and etc.